diff --git a/apps/inm/views.py b/apps/inm/views.py
index 00cb5f35..9c6848ca 100644
--- a/apps/inm/views.py
+++ b/apps/inm/views.py
@@ -128,7 +128,9 @@ class MIOViewSet(CustomModelViewSet):
         'state': ["exact", "in"],
         "type": ["exact", "in"],
         "pu_order": ["exact"],
-        "order": ["exact"]
+        "order": ["exact"],
+        "item_mio__material": ["exact"],
+        "item_mio__material__type": ["exact", "in"]
     }
     search_fields = ['number']
     data_filter = True